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Commitments and Contingencies - Summary of Activities Relating to Company's CARO Liabilities (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Commitments and Contingencies Disclosure [Abstract]      
Beginning balance $ 7.2 $ 6.7 $ 6.5
Liabilities added during the period 2.3    
Liabilities settled during the period (0.1) (0.1) (0.1)
Accretion expense 0.7 0.6 0.5
Adjustment to accretion expense due to revisions to estimated cash flow and timing of expenditure     (0.2)
Ending balance $ 10.1 $ 7.2 $ 6.7